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justifying the derivation quadratic formula two of the steps in the der…

Question

justifying the derivation quadratic formula
two of the steps in the derivation of the quadratic formula are shown below.
step 6: $\frac{b^2 - 4ac}{4a^2} = \left(x + \frac{b}{2a}\
ight)^2$
step 7: $\frac{\pm\sqrt{b^2 - 4ac}}{2a} = x + \frac{b}{2a}$
which operation is performed in the derivation of the quadratic formula moving from step 6 to step 7?
○ subtracting $\frac{b}{2a}$ from both sides of the equation
○ squaring both sides of the equation
○ taking the square root of both sides of the equation
○ taking the square root of the discriminant

Explanation:

Brief Explanations

Para pasar del Paso 6 al Paso 7, se aplica la operación de extraer la raíz cuadrada a ambos lados de la ecuación. El Paso 6 tiene una expresión elevada al cuadrado, y al extraer la raíz cuadrada se obtiene la expresión del Paso 7, incluyendo el signo ± por la propiedad de las raíces cuadradas.

Answer:

○ taking the square root of both sides of the equation